Anonymous ID: 6bd0b6 Jan. 8, 2018, 11:19 a.m. No.27293   🗄️.is 🔗kun   >>7318

>>27180

I am positive: Uppercase delta has two different mathematical meanings. Both meanings begin with the letter D just like the Greek letter, which should help you remember them: Difference is the most common meaning of the uppercase delta. It is simply the difference, or change, in a certain quantity.